New York fitness center Rumble by Bright Architecture. Photography by Joe Polowczuk.

Jeff Koons doesn't box, but his Popeye did inspire Jab, the 7-foot-tall fiberglass sculpture at Rumble, a New York fitness center specializing in boxing-inspired classes designed by Bright Architecture. “It was us rethinking the Instagram moment and branding opportunities,” Nathan Bright explains of the artwork and the entire 14,000-square-foot, five-story project, which includes concrete bleacher seating, two fitness studios, luxury women’s and men’s locker rooms, and a full-floor office for staff, in an environment that feels more gallery than gym. Also “gramable” are the 72 pairs of gloves backing the streamlined reception desk.